Deep Creek, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Deep Creek, South Australia, Australia, is known for Deep Creek Conservation Park, which offers stunning coastal views, diverse wildlife, and hiking trails. The best time to travel to Deep Creek, Australia, is during the summer months of December to February, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 21°C (70°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!